Lock box



FIG. 1 is a left side front perspective view of a lock box embodying the present design.

FIG. 2 is a top plan view of the lock box illustrated in FIG. 1.

FIG. 3 is a bottom plan view of the lock box illustrated in FIG. 1.

FIG. 4 is a right side elevational view of the lock box illustrated in FIG. 1.

FIG. 5 is a left side elevational view of the lock box illustrated in FIG. 1.

FIG. 6 is a front side elevational view of the lock box illustrated in FIG. 1; and,

FIG. 7 is a rear side elevational view of the lock box illustrated in FIG. 1.

The portions shown in broken lines form no part of the claimed design. 

CLAIM The ornamental design for a lock box, substantially as shown and described. 